Display apparatus and method thereof

ABSTRACT

A display apparatus and a display method thereof are provided. According to an exemplary embodiment, a display method of a display apparatus includes: displaying a plurality of display items corresponding to a plurality of content items comprising a first display item displayed in a first region and remaining display items; displaying the first display item using a first display scheme and displaying the remaining display items using a second display scheme; and in response to sensing a user interaction for moving the display items, changing the display scheme of the first display item while moving the first display item in a direction corresponding to the user interaction, displaying the first display item using the second display scheme and changing the display scheme of second display items of the removing to the first region among the rest display items to the first display scheme.

CROSS-REFERENCE TO RELATED APPLICATION

This application claims priority from Korean Patent Application No.10-2014-0064243, filed on May 28, 2014, in the Korean IntellectualProperty Office, the disclosure of which is incorporated herein byreference in its entirety.

BACKGROUND

1. Field

Apparatuses and methods consistent with exemplary embodiments relate toa display apparatus and a display method thereof, and more particularly,to a display apparatus capable of displaying a graphical user interface(GUI) and a display method thereof which may allow the display apparatusto classify and easily search for a plurality of contents depending on acategory.

2. Description of Related Art

A display apparatus used as a means of simply displaying broadcastcontents may also interact with various peripheral apparatuses byconnection, and may display various contents provided through anInternet connection. Further, a display apparatus such as a TV hasevolved to a smart TV in which various applications are installed.

As the quantity of content, which may be used in the display apparatus,such as content provided from the display apparatus itself and contentreceived from an external server has increased, the importance of a userinterface which may easily find and classify content that a user wishesto use has emerged. That is, as the quantity of content which may beused in the display apparatus has increased, the display apparatus maynot be easily controlled by the existing remote controller includingchannel and volume buttons, and the like. Therefore, a need exists for amethod to enable a user to easily use and manage content, services, orthe like which are provided from a display apparatus with a simpleoperation.

SUMMARY

Exemplary embodiments of the present disclosure overcome the abovedisadvantages and other disadvantages not described above. Also, thepresent disclosure is not required to overcome the disadvantagesdescribed above, and an exemplary embodiment may not overcome any of theproblems described above.

The present disclosure provides a display apparatus and a display methodthereof capable of easily classifying and searching content or servicesprovided from the display apparatus depending on user interaction.

According to an aspect of an exemplary embodiment, a display method of adisplay apparatus includes: displaying a plurality of display itemscorresponding to a plurality of content items, the plurality of displayitems comprising a first display item displayed in a first region andremaining display items; displaying the first display item using a firstdisplay scheme and displaying the remaining display items using a seconddisplay scheme; and in response to sensing a user interaction forchanging a focus, changing the display scheme of the first display itemwhile moving the first display item in a direction corresponding to theuser interaction, displaying the first display item using the seconddisplay scheme and changing the display scheme of second display itemsmoving to the first region to the first display scheme.

The first display scheme may be a scheme of displaying thumbnail imagescorresponding to the first display item in a block form having a firstthumbnail width, and the second display scheme may be a scheme ofdisplaying thumbnail images corresponding to the second display items ina block form having a second thumbnail width narrower than the firstthumbnail width.

The second display scheme may be a scheme of displaying thumbnail imagesin a block form having a color corresponding to an average value ofpixel values included in thumbnail images displayed in the seconddisplay scheme.

In the changing, a width of the first display item may be reduced in afirst direction and a width of the second display item moving to thefirst region may be increased in the first direction, in a mannercorresponding to the user interaction to change the display scheme ofthe second display item to the first display scheme.

In the changing, in response to the width of the second display itemmoving to the first region being wider than that of the first displayitem, the display scheme of the first display item may be changed to thesecond display scheme and the display scheme of the second display itemmoving to the first region may be changed to the first display scheme.

The display method may further include displaying the first display itemusing a third display scheme and changing the display scheme of theremaining display items to the first display scheme in response tosensing a second user interaction for extending the plurality of displayitems.

The third display scheme may be a scheme of displaying a pre-establishedvideo and the first display scheme may be a scheme of displayingthumbnail images corresponding to each of the remaining display items.

The display method may further include: extending the pre-establishedvideo to be displayed over the entire display, in response tosubsequently sensing the second user interaction; and changing the videodisplayed to a video corresponding to an adjacent display item in adirection corresponding to the user interaction, in response to sensingthe user interaction.

The pre-established video may be one of a plurality of video framesincluded in the contents, and in the displaying of the pre-establishedvideo over the entire display, the video corresponding to the contentsmay be displayed.

The display method may further include: in response to sensing the userinteraction for changing a focus, changing the display scheme of thefirst display item to the first display scheme when a width of thepre-established video of the first display item is reduced in the firstdirection to be equal to or smaller than that of the second display itemmoving to the first region, depending on the user interaction, andchanging the display scheme of the second display item to the thirddisplay scheme when the width of the second display item is increased inthe first direction to be equal to or larger than that of the firstdisplay item.

In response to the display scheme of the first display item changing tothe first display scheme, the first display item may include a firstthumbnail section in which a thumbnail image corresponding to the firstdisplay item and the pre-established video are displayed whileoverlapping each other, and in response to the display scheme of thesecond display item changing to the third display scheme, the seconddisplay item may include a second thumbnail section in which a thumbnailimage of the second display item and the pre-established video aredisplayed while overlapping each other.

The first region may be a region corresponding to a center of theplurality of display items.

The user interaction may be at least one of a command of moving a touchpoint on a touch pad from a first point to a second point, a command ofmanipulating one of 4-way buttons, and a command of orienting a pointingremote controller.

In the displaying of the plurality of display items, each of the displayitems included in the same category among the plurality of display itemsmay be displayed to be continuously listed.

In the displaying of the plurality of display items, in response to auser command for changing an arrangement order of the plurality ofdisplay items is input, the plurality of display items may be rearrangeddepending on a category classification different from a previouslydisplayed category classification.

According to an aspect of another exemplary embodiment, a displayapparatus includes: a display configured to display a plurality ofdisplay items corresponding to a plurality of content items comprising afirst display item displayed in a first region and remaining displayitems; a sensor configured to sense a user interaction; and a controllerconfigured to control the display to display a first display item usinga first display scheme, display the remaining display items using asecond display scheme, and change the display scheme of the firstdisplay item to the second display scheme while moving the first displayitem in a direction corresponding to the user interaction, and changethe display scheme of a second display item moving to the first regionto the first display scheme in response to the user interaction.

The controller may be configured to control the display to display athumbnail image corresponding to the first display item using the firstdisplay scheme in a block form having a first thumbnail width, anddisplay a block form having a second thumbnail width narrower than thefirst thumbnail width.

The controller may be configured to control the display to display ablock form having a color corresponding to an average value of pixelsvalues included in thumbnail images displayed in the second displayscheme.

The controller may be configured to control the display to change thedisplay scheme of the second display item to the first display scheme byreducing a width of the first display item in a first direction andincreasing a width of the second display item moving to the first regionin the first direction, in a manner corresponding to the sensed userinteraction.

The controller may be configured, in response to the width of the seconddisplay item moving to the first region being wider than that of thefirst display item, to control the display to change the display schemeof the first display item to the second display scheme and change thedisplay scheme of the second display item moving the first region to thefirst display scheme.

The controller may be configured to control the display to display thefirst display item using a third display scheme and change the displayscheme of the remaining display items to the first display scheme inresponse to the sensor sensing a second user interaction for extendingthe plurality of display items.

The controller may be configured to control the display to display apre-established video using the third display scheme and displaythumbnail images corresponding to each of the remaining items using thefirst display scheme.

The controller may be configured to control the display to extend thepre-established video displayed in the first region and display theextended pre-established video over the entire region of the displaywhen the second user interaction is subsequently sensed by the sensorand change the displayed video to a video corresponding to an adjacentdisplay item in a direction corresponding to the user interaction inresponse to sensing the user interaction by the sensor.

The controller may be configured to control the display to display oneof the plurality of video frames included in the contents as thepre-established video and display videos corresponding to the contentsfrom the pre-established video over the entire region of the display.

The controller may be configured to control the display to change thedisplay scheme of the first display item to the first display schemewhen a width of a pre-established video of the first display item isreduced in the first direction to be equal to or smaller than that ofthe second display item moving to the first region, depending on theuser interaction and change the display scheme of the second displayitem to the third display scheme when the width of the second displayitem is increased in the first direction to be equal to or larger thanthat of the first display item, in the case in which the sensor sensesthe user interaction for moving the display item.

The controller may be configured to control the first display item toinclude a first thumbnail section in which a thumbnail imagecorresponding to the first display item and the pre-established videoare displayed while overlapping each other when the display scheme ofthe first display item is changed to the first display scheme and thesecond display scheme of the second display item to include a secondthumbnail section in which a thumbnail image of the second display itemand the pre-established video are displayed while overlapping each otherwhen the display scheme of the second display item is changed to thethird display scheme.

The first region may be a region corresponding to a center of theplurality of display items.

The user interaction may be at least one of a command of moving a touchpoint on a touch pad from a first point to a second point, a command ofmanipulating one of 4-way buttons, and a command of orienting a pointingremote controller.

The controller may be configured to control each of the display itemsincluded in the same category among the plurality of display items to becontinuously listed.

The controller may be configured to control the plurality of displayitems to be rearranged depending on a category classification differentfrom a previously displayed category classification, in response to auser command for changing an arrangement order of the plurality ofdisplay items is input.

According to another aspect of an exemplary embodiment, a display methodof a display apparatus includes: displaying a plurality of display itemscorresponding to a plurality of content items, the plurality of contentitems comprising a first display item displayed in a first region andremaining display items; displaying the first display item using a firstdisplay scheme and displaying the remaining display items using a seconddisplay scheme; and combining a plurality of display items included in asame category among the plurality of display items into an upper displayitem, in response to sensing a third user interaction for displaying anupper category of the display item.

In the changing, in response to sensing the third user interaction, thedisplay schemes of the first display item and at least one display itemincluded in the same category as the first display item may each bechanged to the second display scheme, and display items other than thefirst display item and at least one display item included in the samecategory as the first display item may each be changed to an upperdisplay item as the display items included in the same category arecombined.

In response to subsequently sensing the third user interaction again,the first display item and at least one display item included in thesame category as the first display item may be changed to the upperdisplay item and combined with each other.

The upper display item may be displayed as a color corresponding to anaverage value of pixel values of a thumbnail image corresponding to atleast one combined display item and may be a display item in a box formhaving a width proportional to the number of combined display items.

The first display scheme may be a scheme of displaying thumbnail imagescorresponding to the first display items and the second display schememay be a scheme of displaying the remaining display items in a blockform having a width narrower than that of the thumbnail image.

The display method may further include: in response to sensing a fourthuser interaction for displaying a lower category of the upper displayitem, segmenting the upper display item to change the display scheme ofthe first display item located in the first region to the first displayscheme and changing the display scheme of the remaining display items tothe second display scheme to display the changed display items.

According to still another aspect of an exemplary embodiment, a displayapparatus includes: a display configured to display a plurality ofdisplay items corresponding to a plurality of content items comprising afirst display item displayed in a first region and remaining displayitems; a sensor configured to sense user interaction; and a controllerconfigured to control the display to display a first display item usinga first display scheme, display the remaining display items using asecond display scheme, and combine display items included in a samecategory and change the combined display items to an upper display itemin response to sensing the third user interaction for displaying theupper category of the display item.

The controller may be configured to change the display schemes of thefirst display item and at least one display item included in the samecategory as the first display item, respectively, to the second displayscheme, in response to sensing the third user interaction, and combinedisplay items other than the first display item and at least one displayitem included in the same category as the first display item and changethe combined items to the upper display item.

The controller may be configured to combine and display as the upperdisplay item, in response to subsequently sensing the third userinteraction again, the first display item and at least one display itemincluded in the same category.

The controller may be configured to control the upper display item to bedisplayed as a color corresponding to an average value of pixel valuesof a thumbnail image corresponding to at least one combined display itemand is a display item in a box form having a width proportional to thenumber of combined display items.

The first display scheme may be a scheme of displaying thumbnail imagescorresponding to the first display items and the second display schememay be a scheme of displaying the remaining display item in a block formhaving a width narrower than that of the thumbnail image.

The controller may be configured to segment the upper display item inresponse to sensing a fourth user interaction for displaying a lowercategory of the upper display item, to control the display to change thedisplay scheme of the first display item to the first display scheme andchange the display scheme of the remaining display items to the seconddisplay scheme to display the changed display items.

According to another aspect of an exemplary embodiment, a displayapparatus includes: a display configured to display content; aninterface configured to receive a user input; a controller configured tocontrol the display to display a first icon and a second icon. One ofthe first icon and the second icon is a focused icon displayed in afocused icon format, and the focused icon is initially the first iconand, in response to the user input, the second icon is subsequentlyfocused and displayed in the focused icon format.

The focused icon format may include a focused icon size and the one ofthe first icon and the second icon that is not the focused icon may bedisplayed in a background icon format that includes a background iconsize and the focused icon size is larger than the background icon size.

In response to the user input, as the first icon transitions from thefocused icon format to the background icon format, a size of the firsticon may be gradually reduced from the focused icon size to thebackground icon size, and as the second icon transitions from thebackground icon format to the focused icon format, a size of the secondicon may be gradually increased from the background icon size to thefocused icon size.

The first icon may represent a first content category comprising aplurality of first content items and the second icon may represent asecond content category comprising a plurality of second content items.

In response to the user input selecting the first icon, the first iconmay be replaced with a first plurality of content items representing theplurality of first content items and in response to the user inputselecting the second icon, the second icon may be replaced with a secondplurality of content items representing the plurality of second contentitems.

Additional and/or other aspects and advantages will be set forth in partin the description which follows and, in part, will be obvious from thedescription, or may be learned by practice of exemplary embodiments.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and/or other aspects will be more apparent by describingcertain exemplary embodiments with reference to the accompanyingdrawings, in which:

FIG. 1 is a diagram illustrating a display apparatus and a controlapparatus according to an exemplary embodiment;

FIG. 2 is a block diagram schematically illustrating a configuration ofthe display apparatus according to an exemplary embodiment;

FIG. 3 is a block diagram illustrating in detail the configuration ofthe display apparatus according to an exemplary embodiment;

FIG. 4 is a block diagram illustrating a configuration of a storage ofthe display apparatus according to an exemplary embodiment;

FIGS. 5A to 5C are diagrams illustrating a method of sensing a userinteraction using a control apparatus including a touch pad according toan exemplary embodiment;

FIG. 6 is a diagram illustrating a control apparatus including 4-waybuttons according to an exemplary embodiment;

FIGS. 7A to 7E are diagrams illustrating a method for changing a displayscheme while a plurality of display items move according to an exemplaryembodiment;

FIGS. 8A to 8H are diagrams illustrating a method for extending aplurality of display items and playing the extended items on a wholedisplay according to an exemplary embodiment;

FIGS. 9A to 9D are diagrams illustrating a method for changing a displayscheme while the plurality of display items move, in a state in whichthe display items are displayed as a thumbnail image and apre-established video according to an exemplary embodiment;

FIGS. 10A to 10J are diagrams illustrating a method for moving acategory of a plurality of display items to an upper category or a lowercategory according to an exemplary embodiment;

FIG. 11 is a diagram illustrating a method for changing a scheme ofclassifying a category of display items according to an exemplaryembodiment;

FIGS. 12A to 12C are diagrams illustrating a method for moving to alower category of any of all menus of a display apparatus according toan exemplary embodiment;

FIGS. 13A and 13B are diagrams illustrating an initial screen when auser command for displaying a plurality of display items is inputaccording to an exemplary embodiment;

FIGS. 14 and 15 are diagrams illustrating a method for displaying aplurality of display items according to an exemplary embodiment;

FIG. 16 is a flow chart illustrating a method for moving a plurality ofdisplay items according to an exemplary embodiment; and

FIG. 17 is a flow chart illustrating a method for controlling a depth ofa category corresponding to a plurality of display items according to anexemplary embodiment.

DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS

Hereinafter, exemplary embodiments will be described in more detail withreference to the accompanying drawings. Further, when a detaileddescription for a known function or configuration may obscure thepresent disclosure, the detailed description therefor may be omitted.Further, the following terminologies are defined in consideration of thefunctions in the present disclosure, and may be construed in differentways by the intention of users and operators. Therefore, the definitionsthereof should be construed based on the specification. Expressions suchas “at least one of,” when preceding a list of elements, modify theentire list of elements and do not modify the individual elements of thelist.

FIG. 1 is a diagram illustrating a display apparatus 100 and a controlapparatus 200 according to an exemplary embodiment. As illustrated inFIG. 1, the display apparatus 100 may be a TV, which is only an example.Therefore, the display apparatus 100 may be implemented as any ofvarious electronic devices, such as a mobile phone, a tablet PC, adigital camera, a camcorder, a notebook personal computer (PC), adesktop PC, and a personal digital assistant (PDA) in which a display110 is installed.

The control apparatus 200 may be implemented as any of various types ofapparatuses for controlling the display apparatus 100, such as a remotecontroller or a mobile phone. When the control apparatus 200 isimplemented as a remote controller, the control apparatus 200 mayinclude a touch pad. In this case, the display apparatus 100 may becontrolled by a touch input which is input through the touch pad.

Alternatively, the control apparatus 200 may include mechanical orelectrical inputs, such as 4-way keys. That is, the display apparatus100 may be controlled by a user input to any one of the 4-way keys.Icons which represent a plurality of content items are displayed on thedisplay apparatus 100. A case in which an icon located at a middle ofthe plurality of icons is highlighted will be described as an example.When a user presses a right direction key among the 4-way keys which areincluded in the control apparatus 200, the highlighted icon may bechanged.

The control apparatus 200 may also be a pointing device. That is, apointer on the display of the display apparatus 100 may move, or variousmenus displayed may be selectively enabled, depending on a displacementvalue of a subject, such as a user's finger moving on a surface of thecontrol apparatus 200. Alternatively, the display apparatus 100 may alsobe controlled by the user inclining the control apparatus 200 in anydirection.

Meanwhile, FIG. 2 is a block diagram illustrating a configuration of thedisplay apparatus 100 according to an exemplary embodiment. The displayapparatus 100 includes a display 110, a sensor 120, and a controller130.

The display 110 is a component for displaying a video. The display 110may display content received through a broadcast channel. That is, thedisplay apparatus 100 may receive various broadcasting signalstransmitted from a broadcasting station through an RF communicationnetwork, and may also receive content through an IP network from variousservers. Therefore, the display 110 may display the received content.

Further, the display 110 may display a plurality of display itemscorresponding to a plurality of content items in one region of adisplay. For example, a plurality of thumbnail images corresponding tothe plurality of content items may be displayed at a lower end of thedisplay 110 as display items.

Meanwhile, the sensor 120 is a component for sensing a user interaction.In particular, the sensor 120 may sense the user interaction for movingor extending, and cause display items to be displayed on the display 110via the controller 130. In particular, the sensor 120 may also sense theuser interaction through a separate control apparatus 200.

Meanwhile, the controller 130 is a component for controlling a generaloperation of the display apparatus 100. The controller 130 may controlthe display 110 based on received inputs to display a first display itemamong the plurality of displayed display items in a first region using afirst display scheme, and display the remaining display items, otherthan the first display item located in the first region among theplurality of display items, using a second display scheme. Inparticular, the controller 130 may control the display 110 to display athumbnail image corresponding to the first display item using the firstdisplay scheme, and display the remaining display items, or a seconddisplay item, in a block form having a width narrower than that of thethumbnail image using the second display scheme. In particular, thesecond display scheme may be a block form having a color correspondingto an average value of pixel values included in the thumbnail imagescorresponding to each of the second display items.

Meanwhile, when the user interaction for moving the display item issensed by the sensor 120, the controller 130 may change the firstdisplay item to the second display scheme while moving the first displayitem to one side corresponding to the user interaction. Further, thecontroller 130 may perform a control to change the display scheme of thesecond display item moving towards the first region among the remainingdisplay items to the first display scheme.

In detail, the controller 130 may reduce a width of the first displayitem in a first direction and increase a width of the second displayitem moving towards a first region in the first direction depending onthe user interaction sensed by the sensor 120, and to perform a controlto change the display scheme of the second display item to the firstdisplay scheme.

Further, when the width of the second display item moving to the firstregion is larger than that of the first display item reduced in thefirst direction depending on the user interaction, the controller 130may perform a control to change the display scheme of the first displayitem to the second display scheme, and change the display scheme of thesecond display item moving towards the first region to the first displayscheme.

Meanwhile, when a second user interaction for extending the plurality ofdisplay items is sensed by the sensor 120, the controller 130 mayperform a control to display the first display item using a thirddisplay scheme and change the display scheme of the remaining displayitems, other than the first display item located in the first regionamong the plurality of display items, to the first display scheme.

The third display scheme may be a scheme of displaying a pre-establishedvideo having an aspect ratio different from and more extended than athumbnail image corresponding to the first display item.

That is, the thumbnail image may be an image having an aspect ratio of3:5 and an aspect ratio of the pre-established video different from andmore extended than the thumbnail image may be 3:1. The foregoing ratiosare only provided as examples and therefore the ratios are not limitedthereto. Further, the image used in the third display scheme may be oneof a plurality of video frames included in video content correspondingto the display items displayed in the third display scheme.

Meanwhile, when the second user interaction is sensed again by thesensor 120, the controller 130 may control the pre-established videodisplayed in the first region to be extended, and display the extendedpre-established video over the entire display region of the display 110.Further, the controller 130 may play the video content corresponding tothe pre-established video displayed in the first region from thepre-established video. That is, when the pre-established video is one ofthe plurality of frames included in the video content, the controller130 may control the video content to be played from a framecorresponding to the pre-established video.

That is, in the case in which the first display items located in thefirst region are displayed as the pre-established video and the displayitems located in the remaining regions are displayed in a block formhaving a narrower width and having a different color, when the seconduser interaction is sensed by the sensor 120, the controller 130 maycontrol the pre-established video displayed in the first region to bedisplayed over the entire display region of the display 110.

When the pre-established video is displayed in the entire display regionof the display 110 and the user interaction for moving the plurality ofdisplay items is sensed by the sensor 120, the controller 130 may changethe video displayed through the display 110 in the first directioncorresponding to the user interaction.

Meanwhile, in the case in which the user interaction for moving thedisplay item is sensed, the controller 130 may perform a control tochange the display scheme of the first display item to the first displayscheme when the width of the pre-established video of the first displayitem is reduced in the first direction and the width of the firstdisplay item is equal to or smaller than that of the second display itemmoving to the first region depending on the user interaction. Further,the controller 130 may perform a control to change the display scheme ofthe second display item to a third display scheme when the width of thesecond display item moving to the first region is increased in the firstdirection to be equal to or larger than that of the first display item.

Further, the controller 130 may control the first display item toinclude a section in which a thumbnail image corresponding to the firstdisplay item and the pre-established video are displayed whileoverlapping each other, when the display scheme of the first displayitem is changed to the first display scheme.

That is, the controller 130 may control the thumbnail image and thepre-established video to be displayed while overlapping each other fromthe moment the width of the pre-established video of the first displayitem becomes 70% of the original width, to the moment the width of thepre-established video of the first display item becomes 50% of theoriginal width. The foregoing ratios of width are exemplary only, andtherefore the display apparatus 100 may make the section in which thethumbnail image and the pre-established video overlap each other atdifferent points depending on the setting, or may be set not to have thesection in which thumbnail image and the pre-established video displayedto be overlapping with each other.

Further, the controller 130 may control the second display item toinclude a section in which the thumbnail image of the third display itemand the pre-established video are displayed while overlapping eachother, when the display scheme of the second display item is changed tothe third display scheme.

That is, the controller 130 may control the thumbnail image and thepre-established video to be displayed while overlapping each other fromthe moment the width of the thumbnail image of the second display itembecomes 120% of the original width to the moment the width of thethumbnail image of the second display item becomes 150% of the originalwidth. The foregoing ratios of width are exemplary only, and thereforethe display apparatus 100 may make the section in which the thumbnailimage and the pre-established video overlap each other at differentpoints depending on the setting, or may be set not to have the sectionin which thumbnail image and the pre-established video displayed to beoverlapping with each other.

As described above, the display apparatus 100 displays the section inwhich the thumbnail image and the pre-established video are displayedwhile overlapping each other while the width of the first display itemis reduced and the width of the second display item moving to the firstregion is increased, such that the user may obtain a display effect thatthe plurality of display items appears to be moving seamlessly.

In the foregoing description, the first region may be a regioncorresponding to a center of the plurality of display items.

Further, when the control apparatus 200 for controlling the displayapparatus 100 includes a touch pad, the user interaction may be moving atouched point on the touch pad from a first point to a second point.Alternatively, when the control apparatus 200 includes 4-way buttons,the user interaction may be pressing one of the 4-way buttons. Further,when the control apparatus 200 is a pointing remote controller, the userinteraction may also be inclining the pointing remote controller in onedirection.

Meanwhile, in the case in which the first display item located in thefirst region among the plurality of display items is displayed by thefirst display scheme and the remaining display items, other than thefirst display item located in the first region among the plurality ofdisplay items, are displayed by the second display scheme, when a thirduser interaction for displaying an upper category of the display item issensed by the sensor 120, the controller 130 may perform a control tocombine the display items included in the same category among theplurality of display items, and change the combined display items to anupper display item.

That is, when the third user interaction is sensed by the sensor 120,the controller 130 may change the display schemes of the first displayitem and at least one display item included in the same category as thefirst display item, respectively, to the second display scheme, and maycombine display items other than the first display item and at least onedisplay item included in the same category as the first display item andchange the combined items to an upper display item.

Further, when the third user interaction is sensed again, the controller130 may combine the first display item with at least one display itemincluded in the same category, and change the combined display item tothe upper display item.

In this case, the upper display item has a color corresponding to anaverage value of pixel values of a thumbnail image corresponding to atleast one combined display item and may be a display item in a box formhaving a width proportional to the number of combined display items asthe upper display item.

Further, when a fourth user interaction for displaying a lower categoryof the upper display item is sensed by the sensor 120, the controller130 may segment the upper display item and perform a control to changethe display scheme of the first display item located in the first regionto the first display scheme, and change the display scheme of theremaining display items, other than the first display item located inthe first region, to the second display scheme, thereby displaying thechanged display items.

FIG. 3 is a block diagram illustrating in detail the configuration ofthe display apparatus 100 according to the exemplary embodiment. Asillustrated in FIG. 3, the display device 100 according to the exemplaryembodiment includes the display 110, the sensor 120, the controller 130,a video receiver 140, an image processor 150, a communicator 160, astorage 170, an audio processor 180, and a speaker 190.

The display 110 is a component for displaying a video. The display 110may display content received through a broadcast channel. That is, thedisplay apparatus 100 may receive various broadcasting signalstransmitted from a broadcasting station through an RF communicationnetwork, and may also receive content through an IP network from variousservers. The display 110 may display the received content.

Further, the display 110 may display a plurality of display itemscorresponding to a plurality of content items in one region of adisplay. For example, the thumbnail images corresponding to theplurality of content items may be displayed at the lower end of thedisplay 110 as the display items.

The positions and the display scheme of the plurality of display itemswhich are displayed by the display 110 may be changed depending on thecontrol of the controller 130.

Meanwhile, the sensor 120 is a component for sensing a user interaction.In particular, the sensor 120 may sense the user interaction for movingor extending, and displaying items displayed on the display 110. Inparticular, when the user interaction is input through the separatecontrol apparatus 200, the sensor 120 may receive the user interactioninput to the control apparatus 200.

In detail, when the control apparatus 200 includes a touch pad forreceiving the user interaction and the user interaction of dragging fromthe first region to the second region of the touch pad is input, thesensor 120 may sense that the user interaction for performing thepre-established operation, depending on an input direction of a touchcommand, is input through the touch pad.

Alternatively, when the control apparatus 200 includes the 4-way buttonsto receive the user interaction, and the user interaction of pressing abutton indicating a right direction is input, the sensor 120 may sensethat the user interaction for performing the pre-established operationsdepending on each of the 4-way buttons is input. For example, when theplurality of display items are displayed, the sensor 120 may sense thatthe user interaction for moving the highlighted item to the right isinput.

Meanwhile, the video receiver 140 receives video data through varioussources. For example, the video receiver 140 may receive broadcast datafrom an external broadcasting station, receive the video data fromexternal apparatuses (for example, digital versatile disc (DVD), Blu-rayDisc (BD) player, and the like), and receive the video data stored inthe storage 170. In particular, the video receiver 140 may include aplurality of video receiving modules for receiving video data from aplurality of sources and displaying a plurality of screens on a singledisplay screen. For example, the video receiver 140 may include aplurality of tuners for simultaneously receiving a plurality ofbroadcasting channels and one or more of the plurality of broadcastingchannels that are received may be displayed on the display 110.

The video processor 150 is a component for processing video datareceived by the video receiver 140. The video processor 150 may performvarious image processing on the video data, such as decoding, scaling,noise filtering, frame rate conversion, and resolution conversion.Meanwhile, the video processor 150 may include a plurality of videoprocessing modules for processing videos corresponding to a plurality ofcontent items.

Meanwhile, the communicator 160 is a component for performingcommunication with various types of external devices or external serversdepending on various types of communication schemes. That is, thecommunicator 160 may perform communication with the external apparatusesby including various communication modules, such as a WiFi chip 161, aBluetooth chip 162, a wireless communication chip 163, and an Near fieldcommunication (NFC) chip 164. In this case, the WiFi chip 161, theBluetooth chip 162, and the NFC chip 164 each perform communication by,respectively, a WiFi scheme, a Bluetooth scheme, and an NFC scheme.Among those, the NFC chip 164 is a chip which is operated by the NFCscheme using a band of 13.56 MHz among various RF-ID frequency bands,such as 135 kHz, 13.56 MHz, 433 MHz, 860 to 960 MHz, and 2.45 GHz. TheWiFi chip 161 or the Bluetooth chip 162 first transmits and receivesvarious connection information, such as an SSID and a session key, andthen performs a communication connection using the various connectioninformation, thereby transmitting and receiving various information. Thewireless communication chip 163 is a chip which performs communicationdepending on various communication standards, such as Institute ofElectrical and Electronics Engineers (IEEE), Zigbee, 3rd generation(3G), 3rd generation partnership project (3GPP), long term evolution(LTE), and the like.

The storage 170 stores various modules for driving the display apparatus100. A configuration of the storage 170 will be described with referenceto FIG. 4.

FIG. 4 is a diagram illustrating a configuration of software stored inthe storage 170.

Referring to FIG. 4, the storage 170 may be stored with softwareincluding a base module 171, a sensing module 172, a communicationmodule 173, a presentation module 174, a web browser module 175, and aservice module 176.

The base module 171 is a fundamental module which processes signalstransferred from each hardware component of the display apparatus 100,and transfers the processed signals to an upper layer module. The basemodule 171 includes a storage module 171-1, a security module 171-2, anetwork module 171-3, and the like. The storage module 171-1 is aprogram module which manages database (DB) or registry. A main CPU 133may use the storage module 171-1 to access the database in the storage170, thereby providing access to various data. The security module 171-2is a program module which supports certification for hardware,permission requests, secure storage, and the like. Further, the networkmodule 171-3 includes a DNET module, a UPnP module, and the like, as amodule for supporting a network connection.

The sensing module 172 is a module which aggregates information fromvarious sensors and analyzes and manages the aggregated information. Thesensing module 172 may also include a head direction recognition module,a face recognition module, a speech recognition module, a motionrecognition module, an NFC recognition module, and the like.

The communication module 173 is a module which performs communicationwith the outside. The communication module 173 may include a messagingmodule 173-1 including a messenger program, a short message service(SMS) & multimedia message service (MMS) program, an email program andthe like, and a telephone module 173-2 including a call info aggregatorprogram module, a VoIP module, and the like.

The presentation module 174 is a module for configuring a displayscreen. The presentation module 174 includes a multimedia module 174-1for playing and outputting multimedia content and an UI rendering module174-2 for performing UI and graphic processing. The multimedia module174-1 may include a player module, a camcorder module, a soundprocessing module, and the like. Therefore, the multimedia module 174-1performs an operation of playing various multimedia content to generateand play a screen and a sound. The UI rendering module 174-2 may includean image compositor module which combines images, a coordinatecombination module which combines and generates coordinates on a screenon which an image is displayed, an X11 module which receives variousevents from hardware, a 2D/3D UI toolkit which provides a tool forconfiguring a 2D or 3D type of UI, and the like.

The web browser module 175 is a module which performs web browsing toaccess a web server. The web browser module 175 may include variousmodules, such as a web view module which configures a web page, adownload agent module which performs download, a bookmark module, awebkit module, and the like.

The service module 176 is a module which includes various applicationsfor providing various services. In detail, the service module 176 mayinclude various program modules, such as an social networking service(SNS) program, a content playback program, a game program, an electronicbook program, a calendar program, an alarm management program, and otherwidgets.

FIG. 4 illustrates various program modules, but various program modulesillustrated may be partially omitted, modified, or added depending on akind and characteristics of the display apparatus 100. For example, theservice module 176 may be configured to further include a location basedmodule which supports a location based service by interworking withhardware, such as a Global Positioning System (GPS) chip.

Referring again to FIG. 3, the audio processor 180 is a component forperforming processing on audio data. The audio processor 180 may performvarious processing on audio data, such as decoding, amplification, andnoise filtering. Meanwhile, the audio processor 180 may include aplurality of audio processing modules for processing audio correspondingto a plurality of content items.

The speaker 190 is a component for outputting various alarm sounds orspeech messages in addition to various audio data which are processed bythe audio processor 180. Meanwhile, the display apparatus 100 may alsoinclude other audio outputters, such as an audio output terminal as acomponent for outputting an audio in addition to a speaker 190.

The controller 130 controls a general operation of the display apparatus100 by using various programs stored in the storage 170.

As illustrated in FIG. 3, the controller 130 includes an RAM 131, an ROM132, a graphic processor 134, a main CPU 133, first to n-th interfaces135-1 to 135-n, and a bus 136. In this case, the RAM 131, the ROM 132,the graphic processor 134, the main CPU 133, the first to n-thinterfaces 135-1 to 135-n, and the like, may be connected to each othervia the bus 136.

The ROM 132 is stored with a set of commands for system booting. When aturn on command is input, and thus power is supplied, the main CPU 133copies an operating system (O/S) stored in the storage 170 to the RAM131 according to the command stored in the ROM 132, and executes the O/Sto boot the system. When the booting is completed, the main CPU 133copies various application programs stored in the storage 170 to the RAM131 and executes the application programs copied to the RAM 131 toperform various operations.

The graphic processor 134 uses an operator and a renderer to generate ascreen including various objects, such as an icon, an image, and a text.The operator operates attribute values, such as a coordinate value, aform, a size, and a color, which represent each object depending on alayout of the screen, by using the user interaction sensed by the sensor120. The renderer generates a screen of various layouts, including anobject based on attribute values which are operated by the operator. Thescreen generated by the renderer is displayed in a display region of thedisplay 110.

The main CPU 133 accesses the storage 170 to perform booting using theO/S stored in the storage 170. Further, the main CPU 133 performsvarious operations using various programs, content, data, and the like,which are stored in the storage 170.

The first to n-th interfaces, 135-1 to 135-n, are connected to theforegoing various components. One of the interfaces may be a networkinterface which is connected to the external apparatuses through anetwork.

In particular, the controller 130 may control the plurality of displayitems corresponding to the plurality of content items to be displayed inone region of the display 110. Further, when the user interaction issensed by the sensor 120, the controller 130 may control the displayeddisplay item to be moved, extended, reduced, changed, or the like,depending on a form of the sensed user interaction.

First, a method for sensing by the sensor 120, a user interaction by thecontrol apparatus 200 including a touch pad 210 will be described withreference to FIGS. 5A to 5C.

To control the display apparatus 100 remotely, as illustrated in FIG.5A, the control apparatus 200 including a touch pad 210 may be used.

Therefore, the sensor 120 may sense the user interaction performing adrag, touch, or flip through the touch pad 210 of the control apparatus200. Further, the display apparatus 100 may be controlled depending on acharacteristics (for example, direction in which a drag command isinput, time when a touch command is input, and the like) of a senseduser interaction.

For example, as illustrated in FIG. 5B, when a user interaction 205 ofdragging on the touch pad 210 from a first point 205-1 to a second point205-2 is sensed, the display apparatus 100 may control the plurality ofdisplayed display items to move from left to right. That is, the displayapparatus 100 may move the plurality of display items in a directioncorresponding to the direction of the sensed user interaction 205.

Further, the display apparatus 100 may control a moving speed of theplurality of displayed display items to be changed depending on thesensed input, for example, a speed of the drag sensed on the touch pad210.

Meanwhile, as illustrated in FIG. 5C, when a second user interaction 215to drag the touch pad from a third point 215-1 to a fourth point 215-2is sensed by the sensor 120, the display apparatus 100 may control theplurality of displayed display items to be displayed in an extendedmanner. Alternatively, when the user interaction to drag the touch padin an direction opposite to the second user interaction 215, asillustrated in FIG. 5C, is sensed, the display apparatus 100 may reduceand display the reduced display items.

Further, the display apparatus 100 may display a category of theplurality of displayed display items while changing the category of theplurality of displayed display items to the upper category by the seconduser interaction 215. A detailed method for changing the category of theplurality of displayed display items by the user interaction will bedescribed below.

Meanwhile, as illustrated in FIG. 6, the control apparatus 200 mayinclude 4-way buttons 220 instead of the touch pad 210. That is, thesensor 120 may sense the user interaction of pressing the 4-way buttons220 to control the display of the plurality of display items.

However, the cases in which the control apparatus 200 includes the touchpad 210 and the 4-way buttons 220 are only provided as examples, andtherefore the control apparatus 200 may include both of the touch pad210 and the 4-way buttons 220 to be able to sense various types of userinteractions. Alternatively, the control apparatus 200 may beimplemented as a pointing remote controller form.

That is, when the control apparatus 200 is implemented as a pointingremote controller, a function of the display apparatus 100 may becontrolled depending on a direction in which the control apparatus 200is inclined or an inclined angle of the control apparatus 200.

The control apparatus 200 may be a pointing remote controller includingthe touch pad 210. In this case, the function of the display apparatus100 may be controlled by the user command which controls an inclinedangle of the control apparatus 200 together with the touch input throughthe touch pad 210.

Meanwhile, the control apparatus 200 may be implemented as the pointingremote controller and additionally includes the touch pad 210 and the4-way buttons 220.

Hereinafter, a method for changing, by the display apparatus 100, adisplay scheme while the plurality of display icons move will bedescribed with reference to FIGS. 7A to 7E. In particular, FIGS. 7A to7E are diagrams of an exemplary embodiment of the display apparatus 100for displaying the display item for the video content, such as a movieor a drama.

FIG. 7A is a diagram illustrating an exemplary embodiment in which theplurality of display items corresponding to the plurality of contentitems is displayed at a lower end of the display 110. That is, thedisplay 110 may display blocks, having different colors and having aform in which a width of each content is smaller than a height, at alower portion thereof as the display item.

The blocks may have the same width. However, the width of the block maybe set differently depending on the setting of the user or theimportance, characteristics, and the like, of content represented byeach block.

For example, a width of a block corresponding to the video content thatis repeatedly selected and played by the user may be displayed to bewider than that of other blocks. Alternatively, to recommend the videocontent corresponding to a genre of the repeatedly selected videocontent, to the user, the width of the block corresponding to therecommended content may also be displayed wider than that of otherblocks.

Further, to highlight one of the plurality of display items, the displayitem which is located at a central portion may be displayed by a displayscheme different from the remaining display items. FIG. 7A is a diagramillustrating an exemplary embodiment in which the display 110 highlightsthe display item located at the central portion as a thumbnail image anddisplays the highlighted display item.

The thumbnail image may be an image representing the displayed content.For example, when the plurality of displayed content is for a movie or adrama, the thumbnail image may be a poster of the movie or drama. Thethumbnail image may be stored in the storage 170. Further, the displayapparatus 100 may receive the thumbnail image at a preset period from anexternal server or via wireless communication and store the receivedthumbnail image in the storage 170. The display apparatus 100 mayreceive the thumbnail image from a content provider which providescontent, such as a live TV broadcast.

The display 110 may further display a box enclosing the thumbnail imageas highlight.

Further, the display 110 may display names 30 corresponding to eachcontent at an upper end of the displayed blocks. That is, in thehighlighted display item, the content names are often included in thethumbnail image, and therefore the content names may be easilyappreciated. However, the remaining display items have a simple blockform having different colors, and it may be difficult to know whichcontent is represented. Therefore, the display 110 may display thecontent names 30 at the upper ends of each display item.

Due to the length of the content names 30, it may be difficult tohorizontally display the content names 30 at the upper end of the block.Therefore, the display apparatus 100 may display the content names 30 inan inclined form.

The display apparatus 100 may sequentially display the plurality ofdisplay items corresponding to the plurality of content items dependingon a genre. In this case, the display 110 may display a genre at thelower end of the display item.

For example, as illustrated in FIG. 7A, when “cool guy 305” and“beastman 310” are of a mystery genre, “sinking 320”, “murderer 330”,“shining 340”, and “sky 300” are of a thriller genre, and “Turbo 350”,“TITAN 360” are of a honor genre, and “Doctor 370”, “funfun 380”,“ladies 390” are of a drama genre, the display 110 may display “mystery”on a lower end of a block representing the “cool guy 305” and “beastman310” in a horizontal direction. Further, the display 110 may display“thriller” on a lower end of a block representing the “sinking 320”, the“murderer 330”, the “shining 340”, and the “sky 300” in a horizontaldirection, display “horror” at a lower end of a display itemsrepresenting the “Turbo 350” and the “TITAN 360” in a horizontaldirection, and display the “drama” at a lower end of a blockrepresenting the “Doctor 370”, the “funfun 380”, and the “ladies 390” ina horizontal direction.

A word representing a genre displayed at the lower end may also bedisplayed over the lower end of all of the display items which areincluded in the corresponding genre. However, the number of displayitems which are included in each genre is generally different, andtherefore the display 110 may display a word representing a genre at thelower end of the display item which is located at a start portion of thegenre. That is, depending on a length of a word representing a genre,the genre may be, for example, displayed over two display items, or thegenre may be displayed over three display items.

Meanwhile, when a user command for changing an arrangement of thedisplay items is input, the display apparatus 100 may change thearrangement of the display items depending on a newly establishedstandard and display the changed arrangement of the display items.

For example, the display apparatus may classify the display item intocontent with a bookmark established by a user, content frequently playedby a user, and other content and display the classified display item bythe user command.

That is, as described above, in the case in which the display item isdisplayed depending on the “mystery”, “thriller”, “horror”, and “drama”genres, when the user command for changing the arrangement of thedisplay item depending on the preference is input, the display apparatus100 may display the display item in an order of the content with abookmark, the content frequently played by a user, and other content.

Even in this case, the display apparatus 100 may display the firstdisplay item, which is located in the first region among the pluralityof display items, as the thumbnail image and display the remainingdisplay items in the block form. However, instead of a genre name, suchas “mystery” and “thriller”, words such as “favorite”, “frequent play”,and “low play frequency” may be displayed at the lower end of thedisplay item.

A standard to change the arrangement of the display item may vary, forexample, as a kind of content, a content provider, characters appearingin content, and content providing country.

Further, the remaining display items, other than “sky 300” which ispositioned at the central portion and is highlighted among the pluralityof display items, have a block form, and may be displayed in differentcolors. A color of the block may be determined by various methods. Forexample, the display apparatus 100 may determine the color of the blockusing the color values of the thumbnail images corresponding to eachcontent.

For example, the display apparatus 100 may calculate the average valueof pixel values of the thumbnail image corresponding to each content todetermine the color corresponding to the calculated average value as thecolors of each block.

Alternatively, the display apparatus 100 may store a plurality of themesfor representing the display item in the storage 170 and determine thecolor of the display item depending on the theme set by the user.

For example, when a “mono theme” among the plurality of themes stored inthe storage 170 is selected, the display apparatus 100 may display theplurality of blocks by using white, gray, black colors and the thumbnailimage.

Meanwhile, when the user interaction 205 as described in FIG. 5B issensed, the plurality of display items move in the horizontal direction.In particular, the user interaction 205 of the FIG. 5B is the userinteraction which performs dragging from left to right, and thereforethe plurality of display items may move from left to right to correspondto the direction of the sensed user interaction. That is, in FIG. 7A,the central portion may be changed from the “sky 300” to the “shining340”.

Further, when the user interaction of dragging on the touch pad 210 fromright to left, which is an opposite direction to the user interaction205 of FIG. 5B, is sensed, the plurality of display items may move fromright to left to correspond to the direction of the sensed userinteraction. That is, in FIG. 7A, the central portion may be changedfrom the “sky 300” to the “Turbo 350”.

Referring to FIGS. 7B to 7E, a process of changing the highlight of thecentral portion of the display item from the “sky 300” to the “Turbo350” will be described in detail.

When the user interaction of dragging on the touch pad 210 of thecontrol apparatus 200 from right to left is sensed, the display 110 maydisplay the plurality of display items as moving from right to left.Therefore, the highlighted thumbnail image of the central portion isalso changed depending on the moving direction of all the display items.

First, as illustrated in FIG. 7B, the thumbnail image of the highlighted“sky 400” has a narrow width while moving from right to left by the userinteraction. As the width of the thumbnail image of the highlighted “sky400” is narrow, the width of the block corresponding to the “Turbo 450”,which is located to the right of the thumbnail image of the “sky 400”,is widened.

When the plurality of display items move, the content names 30, whichare displayed at the upper ends of each item, are displayed while movingas much as the movement of the display item.

In the state illustrated in FIG. 7B, when the user takes his/her fingeroff from the touch pad 210, the display items may return to the displaystate of FIG. 7A, as if the result of an elastic force.

When the touch input is continued from the right of the user to theleft, as illustrated in FIG. 7C, all the display items corresponding tothe “sky 410” and the “Turbo 460” have a block form at the moment thatthe widths of the display items corresponding to the originallyhighlighted “sky 410” and “Turbo 460” are the same.

When all the display items corresponding to the “sky 410” and the “Turbo460” have the block form, and then the width of the display itemcorresponding to the “Turbo” 470 is wider than that of the display itemcorresponding to the “sky 420”, as illustrated in FIG. 7D, the displayscheme of the display item corresponding to the “Turbo 470” is changedfrom the block to the thumbnail image.

Finally, as illustrated in FIG. 7E, the central portion of the pluralityof display items is changed to the thumbnail image of the “Turbo 480”.

That is, the plurality of display items move from right to left tocorrespond to the user interaction while the highlight is changed fromthe “sky 300” to the thumbnail image corresponding to the “Turbo 480” bythe foregoing process.

FIG. 7E illustrates the display item including five blocks at eitherside of the thumbnail image in addition to one thumbnail image 480, butthe number of displayed display items may be different depending on thesize of the display 110, the size of the display item, or the usersetting.

Further, in the case in which the total number of display items islarge, and thus all of the display items are not simultaneouslydisplayed on the display 110, when the user interaction for moving thedisplay item is input, the display items which are not displayed may besequentially displayed while all the display items move in the directioncorresponding to the input user interaction.

When there are no more display items to be displayed while the displayitems move by the user interaction, the display apparatus 100 maycontrol the plurality of display items to be displayed as if theplurality of display items return to an original position withelasticity.

That is, as illustrated in FIG. 7E, the case in which a display itemwhich is located at a right end of all the display items even includingthe display items which are not displayed corresponds to “prince 395”will be described as an example. In this case, when the user interactionfor moving the display item from right to left is continuously input,the content displayed as the thumbnail image at the central portion ofthe first region of the plurality of display items is changed from the“Turbo 480” to the “TITAN 360” and a position (portion at which the“prince 395” is displayed, in FIG. 7E) corresponding to one space of ablock of the rightmost portion of the plurality of display items isblank.

Further, the content displayed as the thumbnail image is changed fromthe “TITAN 360” to “Doctor 370” and the two rightmost positions(portions at which the “ladies 390” and the “prince 395” are displayed,in FIG. 7E) are blank.

Finally, the content displayed as the thumbnail image is the “prince395”. Further, no block is displayed to the right of the thumbnail imageof the “prince 395”. In this case, when the user interaction for movingthe display item from right to left is sensed again, if the userinteraction ends by the user behavior to take his/her finger off fromthe touch pad, and the like, after the thumbnail image of the “prince395” slightly moves to the left, the display apparatus 100 may displaythe thumbnail image of the “prince 395” in an appearance such that thethumbnail image of the “prince 395” again returns to the first region.Therefore, the user may obtain a visual effect as if the thumbnail imageof the “prince 395” returns to the position of the first region withelasticity.

Further, the display apparatus 100 may display the plurality of displayitems so that left ends and right ends of the plurality of display itemsare continued. That is, when the user interaction for moving theplurality of display items is continuously input, the display apparatus100 may display the plurality of display items so that the plurality ofdisplay items move as though they are seamlessly connected, like acylindrical shape.

In detail, the case in which the eleven display items illustrated inFIG. 7E are the display items corresponding to all the content availablewill be described as an example. When the user interaction for movingthe display item from right to left is continuously input, the contentdisplayed as the thumbnail image at the central portion which is thefirst region of the plurality of display items is changed from the“Turbo 480” to the “TITAN 360”. Further, all the display items move tothe left, and a block corresponding to the “beastman 310” locatedleftmost moves to the rightmost of the display 110. That is, the blockcorresponding to the “beastman 310” is displayed at the position of theblock corresponding to the current “prince 395”.

When the user interaction for moving the display item from right to leftis further input, the content displayed as the thumbnail image at thecentral portion which is the first region of the plurality of displayitems is changed from the “TITAN 360” to the “Doctor 370”. Further, theblock corresponding to the “sinking 320” moves to the rightmost of thedisplay 110.

That is, in FIG. 7E, when the user interaction is input twice from rightto left, in which the display item located in the first region ischanged, the arrangement order of all the display items becomes the“murderer 330”, the “shining 340”, the “sky 430”, the “Turbo 480”, the“TITAN 360”, the “Doctor 370”, the “funfun 380”, the “ladies 390”, the“prince 395”, the “beastman 310” and the “sinking 320”. Further, the“Doctor 370” located at the center is displayed as the thumbnail image.The remaining display items become a block form.

Meanwhile, the method for moving the plurality of display items asdescribed above may be performed while the display apparatus 100 isplaying other content. That is, when the foregoing user interaction isinput while the display apparatus 100 displays live TV, for example, thedisplay 110 may move and display the plurality of display items at thelower end of the display while continuously displaying live TV.

Meanwhile, when a second user interaction for extending the plurality ofdisplay items is sensed by the sensor 120, the controller 130 maydisplay the first display item using the third display scheme and changethe display scheme of the remaining display items, other than the firstdisplay item located in the first region among the plurality of displayitems, to the first display scheme.

That is, when the user interaction of vertically dragging on the touchpad 210, as described with reference to FIG. 5C, or the user interactionof pressing any one of the 4-way buttons 220 illustrated in FIG. 6 issensed, the display apparatus 100 may extend the display item or changethe display scheme of the display item.

The first display scheme may be displaying a thumbnail imagecorresponding to the display item. Further, the third display scheme maybe displaying a pre-established video which is different from, and moreextended than the thumbnail image. In particular, when the contentcorresponding to the display item is the video content, the thirddisplay scheme may be one of the plurality of frames included in thevideo content.

As illustrated in FIG. 8A, when the second user interaction forextending the plurality of display items is sensed in the state in whichthe first region corresponding to the central portion of the pluralityof display items is displayed in the thumbnail image, the remainingdisplay items are displayed in the block form, and the display apparatus100 changes the display scheme as illustrated in FIG. 8B to display thedisplay item.

That is, a thumbnail image 300 of the first region is changed to apre-established video 600. Further, a name 55 of the content located inthe first region may be horizontally displayed at an upper end of thepre-established video 600. A width of the pre-established video 600 isgenerally wider than that of the thumbnail image, and therefore thedisplay apparatus 100 may horizontally display the content name 55corresponding to the pre-established video 600.

The pre-established video 600 may also be a moving picture. That is,when the pre-established video 600 in the first region is displayed, andthe preset time (for example, 2 seconds) elapses, the pre-establishedvideo 600 may play all the corresponding video content or a previewvideo.

The preview video may be directly generated by the user. Alternatively,the preview video may be generated by extracting a portion of theplurality of frames included in the content. For example, framesselected at a preset interval may be extracted to be used as the previewvideo.

The remaining display items, other than the first display item locatedin the first region, may be changed to thumbnail images 620, 630, 640,650, 660, and 670 from the block form. While the plurality of displayitems are extended, the total number of displayed display items isreduced. The number of displayed thumbnail images may be differentdepending on the width of the display 110, the width of the displayitem, or the user setting.

As illustrated in FIG. 8B, when the second user interaction iscontinuously sensed, the display apparatus 100 may play the videocontent displayed in the first region. In particular, the displayapparatus 100 may also play the video content from the frame displayedas the pre-established video 600 in the first region.

The display apparatus 100 may play the video content as illustrated inFIGS. 8C, 8D, and 8E, corresponding to the user interaction for playingthe video content.

That is, as illustrated in FIG. 8C, the display item is furtherextended, corresponding to the user interaction.

However, as illustrated in FIG. 8C, when the sensed user interactionstops in the state in which while the display item is further extendedand the pre-established video 700 displayed in the first region isslightly wider than other display items, the display item may return toan original state. That is, when the sensed user interaction stops whilein the state illustrated in FIG. 8C, the display item may return to thestate illustrated in FIG. 8B. Therefore, prior to sensing the userinteraction which is equal to or more than the threshold value, the usermay obtain the visual effect as if the display item is recovered due toelasticity.

When the user interaction which is equal to or more than the thresholdvalue is input, as illustrated in FIG. 8D, the pre-established video 800located in the first region is extended and the remaining display items840 and 850 may move off of the screen to both sides, while leaving anafterimage.

Meanwhile, the method for playing the video content by extending thedisplay item displayed by the third display scheme, as described above,may be performed while the display apparatus 100 is already playingother content. That is, when the foregoing second user interaction isinput while the display apparatus 100 displays live TV, the contentwhich is displayed by the display apparatus 100 may be changed to acontent 900 corresponding to the pre-established video, as illustratedin FIG. 8E.

Further, when the user interaction for changing the playing content isinput while the content 900 corresponding to the pre-established videoas illustrated in FIG. 8E is displayed, the playing content may bechanged depending on the displayed order of the display items.

In detail, in FIG. 8E, when the user interaction of dragging on thetouch pad 210 from right to left is input, the content corresponding tothe display item 650 (FIG. 8B) which is located at the right of thedisplay item corresponding to the playing content 900 may be played.

FIG. 8F is a diagram illustrating that the user interaction of draggingon the touch pad 210 from right to left is input to play another content910, according to the exemplary embodiment.

To correspond to the user interaction, the playing video content 900moves from right to left and another content 910 corresponding to thedisplay item 650 (FIG. 8B) located at the right of the display itemcorresponding to the playing video content 900 moves from right to left.

When user interaction of dragging on the touch pad 210 from right toleft stops before the content 910 corresponding to the display item 650(FIG. 8B) located at the right of the display item corresponding to theplaying content 900 is displayed on more than half of the display 110,the moving content 910 again moves from left to right and thusdisappears. Further, the playing content 900 is again displayed over thewhole of the display 110.

That is, when the user interaction is sensed as being less than thethreshold value, the user may obtain the visual effect as if the contentreturns to the original positions due to elasticity.

When the user interaction of dragging on the touch pad 210 from right toleft is continuously input, as illustrated in FIG. 8G, another content910 corresponding to the display item 650 (FIG. 8B) located at the rightof the display item corresponding to the playing content 900 isdisplayed over the entire display region of the display 110.

Meanwhile, as illustrated in FIG. 8H, when the user command to play thecontent 600 corresponding to the pre-established video is input, thedisplay apparatus 100 may play the content 600 corresponding to thepre-established video in the entire display region of the display 110 ata time, without generally extending the plurality of display items.

For example, in the case in which the control apparatus 200 is a remotecontroller, the user command of pressing an “OK” button included in thecontrol apparatus 200 is input, and the display apparatus 100 may playthe content 600 corresponding to the pre-established video in the entiredisplay region of the display 110 at a time.

Meanwhile, FIGS. 9A to 9D are diagrams for describing a method forchanging the display item located in the first region in the state inwhich the display item is displayed as the thumbnail image and thepre-established video, according to the exemplary embodiment.

FIG. 9A is a diagram illustrating that display items are displayed asthe pre-established video 1200 in the first region of the lower end ofthe display 110 and displayed as thumbnail images 620, 630, 1240, 650,660, and 670 in the remaining region other than the first region.

That is, to highlight the display item at the central portioncorresponding to the first region, the display apparatus 100 may displayany frame included in the video content corresponding to the displayitem in the first region as the pre-established video 1200.

For the remaining regions, other than the first region, the displayapparatus 100 may display the display item as the thumbnail image. Thethumbnail image may be an image standing for the displayed content. Forexample, when the plurality of displayed content is for a movie or adrama, the thumbnail image may be a poster of a movie or a drama. Thethumbnail image may be stored in the storage 170. Further, the displayapparatus 100 may periodically receive the thumbnail image at a presetperiod from an external server using wireless communication and storethe received thumbnail image in the storage 170. The display apparatus100 may receive the thumbnail image from a content provider whichprovides content.

The display 110 may further display a box enclosing a pre-establishedvideo 1200 as highlight.

Further, the display 110 may display names 50 corresponding to eachcontent at an upper end of the display item. The content name 50 may bewider than the width of the thumbnail image depending on the length.Therefore, the display apparatus 100 may display the content name 50 inan inclined form. However, this is only any exemplary embodiment and thecontent name 50 may be omitted or may be displayed at the upper end ofthe thumbnail image in a horizontal direction with a small writingstyle.

The display apparatus 100 may sequentially display the plurality ofdisplay items corresponding to the plurality of content items dependingon a genre. In this case, the display 110 may display a genre at thelower end of the display item.

For example, in FIG. 9A, when “sinking 620”, “murderer 630”, “shining1240” and “sky 1200” are a thriller movie, “Turbo 650”, “TITAN 660” area horror movie, and “Doctor (670)” is a drama, the display 110 maydisplay the “thriller” at the lower end of the display item representingthe “sinking 620”, the “murderer 630”, the “shining 1240” and the “sky1200” in a horizontal direction, the “horror” at the lower end of thedisplay item representing the “Turbo 650” and the “TITAN 660” in ahorizontal direction, and the “drama” at the lower end of the displayitem representing the “Doctor 670” in a horizontal direction.

A word representing a genre displayed at the lower end may also bedisplayed over the whole lower end of the display items which areincluded in the corresponding genre, but the number of display itemswhich are included in each genre is generally different and thereforethe display 110 may display a word representing a genre at the lower endof the display item which is located at a start portion of the genre.That is, depending on a length of a word representing a genre, the genremay be displayed over one display item or the genre may be displayedover two display items.

Meanwhile, when a user command to change an arrangement of the displayitems is input, the display apparatus 100 may change the arrangement ofthe display items depending on a newly established standard and displaythe changed arrangement of the display items.

For example, the display apparatus may classify the display item into acontent with a bookmark established by a user, a content which isfrequently played by a user, and other content and display theclassified display item by the user command.

That is, as described above, in the case in which the display item isdisplayed depending on the “thriller”, “honor”, and “drama” genres, whenthe user command to change the arrangement of the display item dependingon the preference is input, the display apparatus 100 may display thedisplay item in an order of the content with a bookmark, the contentwhich is frequently played by a user, and other content.

In this case, the display item located in the first region among theplurality of display items may be displayed as the pre-established videoand the remaining display items may be displayed as the thumbnail image.However, instead of a genre name, such as “thriller”, words such as“favorite”, “frequent play”, and “low play frequency” may be displayedat the lower end of the display item.

A standard to change the arrangement of the display item may be vary,for example as a kind of content, a content provider, charactersappearing in content, and content providing country.

Meanwhile, when the user interaction 205 as described in FIG. 5B issensed, the plurality of display items move in the horizontal direction.In particular, the user interaction 205 of the FIG. 5B is the userinteraction of dragging touch pad from left to right, and therefore theplurality of display items may move from left to right to correspond tothe direction of the sensed user interaction. That is, in FIG. 9A, thecentral portion may be changed from the “sky 1200” to the “shining1240”.

Further, when the user interaction of dragging on the touch pad 210 fromright to left, which is an opposite direction to the user interaction205 of FIG. 5B, is sensed, the plurality of display items may move fromright to left to correspond to the direction of the sensed userinteraction. That is, in FIG. 9A, the central portion may be changedfrom the “sky 1200” to the “Turbo 650”.

Referring to FIGS. 9B to 9D, a process of changing the highlight of thecentral portion of the display item from the “sky 1200” to the “shining1240” by the user interaction 205 will be described in detail.

When the user interaction of dragging on the touch pad 210 of thecontrol apparatus 200 from left to right is sensed, the display 110 maydisplay a process of moving all of the display items to move from leftto right. Therefore, the highlighted pre-established image of thecentral portion is also changed depending on the moving direction of allthe display items.

First, as illustrated in FIG. 9B, the width pre-established video 1300of the highlighted “sky” narrows as it moves from left to right by theuser interaction. The width of the thumbnail image 1240 of the “shining”located at the left of the pre-established video 1300 of the “sky” iswidened as the width of the pre-established video 1300 of thehighlighted “sky” is narrowed.

In particular, when the width of the thumbnail image 1240 of the“shining” located at the left of the pre-established video 1300 of the“sky” is larger than the preset ratio, the display apparatus 100 maydisplay an image 1340 in which the thumbnail image of the “shining”overlaps the pre-established video of the “shining”.

For example, the display apparatus 100 may display the image 1340 inwhich the thumbnail image of the “shining” and the pre-established videoof the “shining” overlap each other, just before the widths of thedisplay items of the “shining” and the “sky” are the same as each otherfrom the time when the width of the thumbnail image 1240 of the“shining” is increased to 140%.

Meanwhile, when the plurality of display items move, the content name50, which is displayed along the upper ends of each item, is displayedso as to correspond to the movement of the display item.

In the displayed state illustrated in FIG. 9B, when the user takeshis/her finger off from the touch pad 210, the display items may returnto the display state of FIG. 9A as if the result of an elastic force.

When the user interaction 205 from the left of the user toward the rightis continued, as illustrated in FIG. 9C, after the width of the displayitem 1400 corresponding to the originally highlighted “sky” is smallerthan that of the display item 1440 corresponding to the “shining”, thedisplay apparatus 100 may display a video 1400 in which the thumbnailimage of the “sky” and the pre-established video of the “sky” overlapeach other.

For example, the display apparatus 100 may overlap the thumbnail imageof the “sky 1400” with the pre-established video of the “sky 1400” untilthe width of the display item of the “sky 1400” becomes 140% of thethumbnail image and display the display item. Further, when the width ofthe display item of the “sky 1400” is reduced to less than 140% of thethumbnail image, the display apparatus 100 may display the thumbnailimage of the “sky 1400”.

Meanwhile, the display item 1440 corresponding to the “shining” whichmoves to the first region is changed to the pre-established video.Further, because the plurality of display items move from left to right,a thumbnail image 670-2 of the “Doctor” which is displayed at the rightend of the display 110 gradually disappears. Further, a thumbnail image610-2 of the “beastman” displayed at the left end of the display 110 isgradually displayed.

Finally, as illustrated in FIG. 9D, the central portion of the pluralityof display items is changed to the pre-established video 1540 of the“shining”.

That is, the plurality of display items move from left to right tocorrespond to the user interaction while the highlight is changed fromthe “sky” to the pre-established video 1540 of the “shining” by theforegoing process.

Therefore, the display 110 displays a pre-established video 1540 of the“shining” at the central portion of the first region and displaysthumbnail images 610-3, 620-3, and 630-3 of each of the “beastman”, the“sinking”, and the “murderer” in the left region of the first region.Further, the display 110 displays thumbnail images 1500, 650-3, and660-3 of the “sky”, the “Turbo”, and the “TITAN” to the right of thefirst region.

FIG. 9D illustrates displaying three thumbnail images respectively atboth sides of the thumbnail image in addition to one pre-establishedvideo 1540, but the number of displayed display items may be differentdepending on the size of the display 110, the size of the display item,or the user setting.

Further, in the case in which the number of display item exceeds thenumber of items able to be displayed, when the user interaction formoving the display item is input, the display items which are notdisplayed may be displayed while all the display items move in thedirection corresponding to the input user interaction.

When there are no more display items to be displayed while the displayitems move by the user interaction, the display apparatus 100 maycontrol the plurality of display items to be displayed as if theplurality of display items return to a previous position due toelasticity.

In detail, as illustrated in FIG. 9D, the case in which the finaldisplay item is located at the left end of all the display items is thethumbnail image 610-3 of the “beastman” will be described as an example.

In this case, when the user interaction for moving the display item fromleft to right is continuously input, the content displayed at thecentral portion, which is the first region of the plurality of displayitems, is changed from the pre-established video 1540 of the “shining”to the pre-established video 630-3 of the “murderer” and the position(portion at which the thumbnail image 610-3 of the “beastman” isdisplayed in FIG. 9D) corresponding to one space of the thumbnail imageof the leftmost portion of the plurality of display items is blank.

Further, the content displayed as the pre-established video is changedfrom “murderer 630-3” to “sinking 620-3” and a position (portion atwhich the thumbnail images 610-3 and 620-3 of “beastman” and “sinking”are displayed in FIG. 9D) corresponding to two spaces of the thumbnailimage of the leftmost portion of the plurality of display items areblank.

Finally, the pre-established video of the “beastman 610-3” is displayedin the first region. Further, no thumbnail image is present to the leftof the pre-established video of the “beastman 610-3”. In this case, whenthe user interaction 205 for moving the display item from left to rightis further input, if the sensing of the user interaction ends by userbehaviors, such as slightly moving the pre-established video of the“beastman 610-3” to the right and taking his/her finger off from thetouch pad, the display apparatus 100 may display the pre-establishedvideo of the “beastman 610-3” returning to the first region. Therefore,the user may obtain the visual effect as if the pre-established video ofthe “beastman 610-3” returns to the position of the first region due toelasticity.

Further, the display apparatus 100 may display the plurality of displayitems while the left ends and the right ends of the plurality of displayitems are continuously displayed. That is, when the user interaction formoving the plurality of display items is continuously input, the displayapparatus 100 may display the plurality of display items so that theplurality of display items move as though connected seamlessly, like acylindrical shape.

Meanwhile, the method for moving the plurality of display items asdescribed above may be performed while the display apparatus 100 alreadyplays other content. That is, when the foregoing user interaction isinput while the display apparatus 100 displays live TV, the display 110may display the moving content of the plurality of display items at thelower end of the display 110 while continuously displaying live TV.

Further, the pre-established video displayed in the first region may bea moving picture. Therefore, the display item corresponding to onecontent is displayed in the first region, and when the preset timeelapses, the display apparatus 100 may play the pre-established videowhich is displayed in the first region. The video which is played in thefirst region may be the video content that corresponds to the displayitem corresponding to the first region. Alternatively, the video whichis played in the first region may be a preview video of the videocontent that corresponds to the display item corresponding to the firstregion.

The preview video may be directly generated by the user. Alternatively,the preview video may be generated by periodically extracting a portionof the plurality of frames included in the content at a preset interval.

Meanwhile, a speed of the display of moving the display items may varyeven though the user interaction of the same speed from the user issensed. For example, the moving of the display item to left or rightdescribed with reference to FIGS. 7A to 7E and FIGS. 9A to 9D may beperformed at different speeds, even though a speed of the input is thesame.

That is, the controller 130 may allocate weights for a moving speed tothe plurality of display items. For example, the controller 130 mayperform a control to make a moving speed slow when the portion of thedisplay item passes through the first region, and to make the movingspeed fast when an interval between the display item passes through thefirst region.

Further, the plurality of display items may disappear depending on theuser command. The user command to end display of the display items maybe an input to press a separate button installed in the controlapparatus 200, or an input of a long press on the touch pad 210 of thecontrol apparatus 200.

Further, even when the user command to end display of the display itemsis not input, the plurality of display items may disappear when a presettime (for example, five seconds) of inactivity elapses.

By the foregoing method of moving the display item, the user may obtaina visual effect as though the display item moves while extended due toelasticity.

Hereinafter, a method for moving the category of the plurality ofdisplay items to an upper category or a lower category will be describedwith reference to FIGS. 10A to 10J.

As illustrated in FIG. 10A, in a case in which a display item located inthe first region is displayed as the pre-established video 1540 and thethumbnail image is displayed in the remaining region, when a userinteraction for reducing the display item is sensed, the plurality ofdisplay items may change to the thumbnail image and be displayed inblock form.

For example, when the user interaction in the opposite direction to thesecond user interaction for extending the display item, the displayapparatus 100 may reduce the display item and display the reduceddisplay item.

In detail, as described above, when a command 215 dragging on the touchpad 210 of the control apparatus 200 illustrated in FIG. 5C, from athird point 215-1 to a fourth point 215-2 is the second userinteraction, a user interaction for reducing the display item may bedragging on the touch pad from the fourth point 215-2 to the third point215-1.

FIG. 10B is a diagram illustrating a process for reducing the displayitem. When a user interaction for reducing the display item is sensed,the width of the plurality of display items is narrowed.

As the width of the plurality of display items is reduced, the displayitem corresponding to a content “cool guy 1690” which is not displayedfor the reason of space may also be displayed.

The pre-established video 1640 located in the first region is displayed,while overlapping the thumbnail image. Further, thumbnail images 1690,1680, 1620, 1630, 1600, 1650, 1660, and 1670 located in the remainingregion other than the first region overlap a color corresponding to anaverage value of the pixel values of each thumbnail.

Further, when the user interaction stops in the state as illustrated inFIG. 10B, the display item may return to the state illustrated in FIG.10A. That is, when the user interaction is not sensed for more than thethreshold value of time, the display item may return to the originalstate due to elasticity.

FIG. 10C is a diagram illustrating that the user interaction forreducing the display item is sensed for more than the threshold value oftime, and thus the thumbnail image and the display item having the blockform are displayed.

When a third user interaction is sensed in the state illustrated in FIG.10C, the controller 130 may change the category of the display item anddisplay the changed display item. That is, the display items arecombined and thus the upper display item corresponding to the uppercategory may be displayed. The user interaction for changing the displayitem to the display item corresponding to the upper category may be thesame as the user interaction for reducing the display item.

However, this is only an example, and the third user interaction forchanging the display item to the display item corresponding to the uppercategory may be entirely different from the first and second userinteractions.

For example, when the control apparatus 200 includes touch pad 210, thethird user interaction may be the user command dragging on the touch pad210 in one direction. When the control apparatus 200 includes 4-waybuttons 220, the third user interaction may be the user command pressingone of the 4-way buttons 220.

When the control apparatus 200 is the pointing remote controller, thethird user interaction may also be a user inclining the pointing remotecontroller in one direction. Alternatively, the control apparatus 200may be a pointing remote controller including touch pad 210. In thiscase, the third user interaction may be a user controlling an inclineangle of the slope of the control apparatus 200 together with the touchinput through the touch pad 210.

Alternatively, the touch through the touch pad 210 is a user selectingany content, and the like, and the user tilting the control apparatus200 may be a command to move a pointer. Further, tilting the controlapparatus 200 together with the touch input may be the third or fourthuser interaction for controlling a depth of the category. The depth ofthe category may be stepwise controlled depending on the slope of thecontrol apparatus 200. Further, a speed of controlling the depth of thecategory may be different depending on a speed of tilting the controlapparatus 200.

When the third user interaction is sensed by the sensor 120, the displayapparatus 100 may combine the display items included in the samecategory and change the combined display items to the upper displayitem.

That is, the display apparatus 100 may change the display schemes of thefirst display item and at least one display item included in the samecategory as the first display item to the second display scheme, andcombine the display items included in the same category in the remainingdisplay items which are not changed to the second display scheme, andchange the combined display items to the upper display item.

In FIG. 10C, the case in which the genre of “summer 303”, “cool guy 305”and “beastman 310” is a mystery movie, the genre of “sinking 320”,“murderer 330”, “shining 1740”, and “sky 1700” is a thriller movie, thegenre of “Turbo 350” and “TITAN 360” is a honor movie, and the genre ofthe “Doctor 370” and “funfun 380” is a drama will be described as anexample.

FIG. 10D is a diagram illustrating a process of combining the displayitems as the upper display item in response to the third userinteraction.

When the third user interaction is sensed, display items correspondingto the same category are combined as one of the upper display items1860, 1850, 1870, and 1880. On the other hand, the first display item1840 corresponding to the first region, and display items 1820, 1830,and 1800 corresponding to the same category as the first display item1840, the width of the display item and the interval of each displayitem are narrow.

The upper display items 1860, 1850, 1870, and 1880 may have differentwidths in proportion to the number of content items included in thecorresponding category and may have a box form having a color of aplurality of colors depending on the color value of the thumbnail imageof the content included in the corresponding category.

Further, during the process of combining as the upper display items1860, 1850, 1870, and 1880, a vertical line may be included to naturallydisplay an appearance that the display items in the block form arecombined.

Further, the controller 130 may display genre names 1865, 1855, 1875,and 1885 corresponding to each upper display item at upper or lower endof each of upper display items 1860, 1850, 1870, and 1880.

Meanwhile, in addition to the display item displayed by the display 110,a display item which is not currently displayed is still present, theupper display item of the display item which is not displayed may bedisplayed while the upper display item is displayed by the third userinteraction. That is, the space of the display 110 is insufficient todisplay all display items, and thus the display item not currentlydisplayed may also be displayed as much as the allowable space of thedisplay 110 while being changed to the upper display item.

For example, when a content of an action genre which is not currentlydisplayed is present at the left of the display item 303 correspondingto the content “summer”, the upper display item 1860 with which thedisplay items corresponding to the action genre are combined may bedisplayed at the left of the upper display item 1850 corresponding tothe mystery genre. Further, the genre name “action 1865” may bedisplayed at an upper end of the upper display item 1860 of the actiongenre.

When the third user interaction is sensed more than a threshold valuenumber of times, as illustrated in FIG. 10E, vertical lines, which arepresented in upper display items 1960, 1950, 1970, and 1980, disappear.

Further, the controller 130 may change the first display item 1940 andthe display items 1920, 1930, and 1900 corresponding to the contentincluded in the same category as the first display item to a block formhaving a constant color. The display items 1920, 1930, 1940, and 1900 inthe block form which are located in the first region may be representedby a color corresponding to an average value of the pixel values of thethumbnail images corresponding to each display item.

As illustrated in FIG. 10F, widths of a first display item 2040 anddisplay items 2020, 2030, and 2000 corresponding to the content includedin the same category as the first display item are the same.

Further, as illustrated in FIGS. 10G to 10J, the display items havingthe same width are combined in a box form.

In detail, FIG. 10G is a diagram illustrating that the display items1920, 1930, 1940, and 1900 in the block form having different colors arecombined seamlessly but different colors are maintained as before.Because the display items 1920, 1930, 1940, and 1900 in the block formare combined with each other, the content names corresponding to theeach block disappear. Further, the name of genre corresponding to thedisplayed content, for example, “thriller” is displayed.

FIG. 10H is a diagram illustrating wherein the combined upper displayitem 2100 includes a vertical line, but a color is changed to a colorhaving the average value of the pixel values of the color of the displayitem in the existing block form.

As illustrated in FIG. 10I, the vertical line included in the upperdisplay item 220 is gradually reduced, and as illustrated in FIG. 10J,the vertical line disappears.

That is, by the method for combining the display items 2020, 2030, 2040,and 2000 included in the same category as the upper display itemdepending on an order as illustrated in FIGS. 10F to 10J, the user mayobtain the visual effect as if the display item is continuouslynaturally combined as the upper display item.

In particular, when the user changes the display item to the upperdisplay item using the remote controller or the pointing remotecontroller in which the touch panel 210 is included, the user may use auser interface which easily moves between categories.

Further, the method for displaying the upper display item by theforegoing process is only an example, and any step may be omitted or astep for making a display effect natural may be added.

Meanwhile, FIG. 11 is a diagram illustrating a method for changing ascheme of classifying the categories of the display item.

When the user command for changing the classification of the category ofthe display item is input, the display apparatus 100 may change astandard of classifying the category depending on the user setting, theinitial setting, or the like.

For example, FIG. 11 is a diagram illustrating the display apparatus 100in which the upper display item may be classified into “action 1960”,“mystery 1950”, “thriller 2300”, “honor 1970” and “drama 1980” dependingon the genre of the video content, such as a movie and a drama, and isdisplayed.

The width of the upper display item may vary depending on the number ofcontent items. Therefore, the upper display item may be displayed at thecentral portion of the lower end of the display 110 depending on thewidth of the display 110 or the number of content items. However, thisis only an example, and when the number of content items is large, theplurality of upper display items may not be displayed on the display 110at a same time. In this case, when the user interaction for moving thedisplay item is sensed, the upper display item may move in onedirection.

The upper display item in which the video content, such as a movie and adrama are classified depending on the genre, is displayed, and when theuser interaction for categorizing and displaying all the content of thedisplay apparatus 100 is sensed, the upper display item, such asreference numeral 2400, may be arranged.

That is, the display apparatus 100 may display the upper display items2400 including the upper display item representing “application”, theupper display item representing a “movie”, the upper display itemrepresenting a video on demand (“VOD”), and the like.

The upper display item, such as reference numeral 2400, may be a boxform having a color and width depending on the number of content itemsincluded in the display item.

Further, the upper display item may move in one direction depending onthe user interaction for moving the upper display item.

Rearranging the upper display items and classifying the video content,such as a movie and a drama depending on the genre into the upperdisplay items and classifying all the content items of the displayapparatus 100 depending on the category is only an example. Thereforethe upper display items may be rearranged depending on variousstandards, such as rearranging upper display items depending on acontent use frequency, a content provider, characters, and providingcountries.

Meanwhile, FIG. 12A is a diagram illustrating the display apparatus 100displaying upper display items which are arranged to include contentcorresponding to “VOD 2500”, “Setting 2510”, “application 2520”,“Internet 2530” and “Broadcast 2540”.

Each upper display item may be represented by a different color, but asillustrated in FIG. 12A, the upper display items may also have namesrepresenting each upper display item provided therein. Further,according to the exemplary embodiment, the names of each upper displayitem may also be displayed at one of the upper end, left end, or rightend of the upper display item.

Hereinafter, a method for displaying a lower category of an upperdisplay item will be described with reference to FIGS. 12A to 12C.

A user interaction in the opposite direction to the third userinteraction for displaying the upper category of the display item may besensed as a fourth user interaction for displaying the lower category.

When the fourth user interaction is sensed, the display apparatus 100may segment the upper display item corresponding to the first region anddisplay the segmented upper display item.

For example, when the first region is a region corresponding to thecenter of the plurality of display items, in FIG. 12A, the upper displayitem 2520 corresponding to the “application” is located in the firstregion.

Therefore, the controller 130 may segment the upper display item 2520corresponding to the “application”, depending on the fourth userinteraction.

In detail, as illustrated in FIG. 12B, the upper display item 2520corresponding to the “application” may be segmented into display items2521, 2522, 2523, and 2524 corresponding to “Game”, “Camera”, “Life”,and “Bookmark” categories.

As the upper display item 2520 corresponding to the “application” issegmented, the positions of the remaining upper display items 2500,2510, 2530, and 2540 may be changed. Further, when a large number ofdisplay items are generated while the upper display item 2520corresponding to the “application” is segmented, some or all of theremaining upper display items 2500, 2510, 2530, and 2540 may not bedisplayed on the display 110.

FIG. 12C is a diagram illustrating that when the fourth user interactionis sensed again, the display item 2523 corresponding to the “Life”located in the first region may be further segmented.

That is, when the fourth user interaction is sensed again, the contentcorresponding to the display item located at the central portion of thedisplay item corresponding to the first region may be segmented into thelower category.

The display apparatus 100 displays a thick edge of the display itemcorresponding to the first region, and as a result, when the fourth userinteraction is again sensed, the user may appreciate the segmentation ofthe display item.

In detail, when the fourth user interaction is sensed again, the displayitem 2523 corresponding to the “Life” is segmented, and thus lowerdisplay items 2522-1, 2522-2, 2522-3, 2522-4, and 2522-5, correspondingto “Weather”, “Stock”, “Travel”, “Healthcare”, and “Bank”, may bedisplayed.

When the user command to execute the content is input, the displayapparatus 100 may execute a content corresponding to the display itemlocated in the first region among the plurality of displayed displayitems.

That is, the user interaction for moving the display item is used toexecute content corresponding to the display item located in the firstregion and when the user command to execute the content is input, thecontent corresponding to the display item located in the first region isexecuted.

Meanwhile, when the user command to display the foregoing plurality ofdisplay items is input, the display apparatus 100 may display an initialscreen, as illustrated in FIG. 13A or 13B.

That is, as illustrated in FIG. 13A, the display apparatus 100 maydisplay a graphical user interface (GUI) 2600 which represents local,date, and weather using the display apparatus 100.

Alternatively, as illustrated in FIG. 13B, the display apparatus 100 maydisplay a graphical user interface (GUI) 2700 which represents a name(ABC STRIPE), version information, and the like, of a program whichdisplays the plurality of display items.

Meanwhile, when the user interaction for moving the plurality of displayitems is sensed while the initial screen, as illustrated in FIG. 13A or13B, is displayed, the display apparatus 100 may display a plurality ofdisplay items at the lower end of the display 110 while the foregoingGUIs 2600 and 2700 of the initial screen disappear.

When the initial screen is displayed as illustrated in FIG. 13A or 13Band the user interaction is not sensed for a preset time (for example, 5seconds), the display apparatus 100 may make the plurality of displayitems disappear from the display 110.

Meanwhile, FIGS. 14 and 15 are diagrams illustrating a method fordisplaying a plurality of display items.

That is, as described above, the plurality of display items may bedisplayed at the lower end of the display 110 but the plurality ofdisplay items may also be displayed at a position as illustrated inFIGS. 14 and 15.

In detail, FIG. 14 is a diagram illustrating an exemplary embodiment inwhich the plurality of display items are displayed at the right of thedisplay 110 in a vertical direction. Further, this is only an exampleand the display apparatus 100 may display the plurality of display itemsat the left of the display 110 in a vertical direction.

Alternatively, as illustrated in FIG. 15, the display apparatus 100 maydisplay the video which is displayed over the whole display 110 at aportion 4000 of the display 110 prior to displaying the plurality ofdisplay items.

That is, the display apparatus 100 may display the video which isdisplayed over the whole display 110 so as not to overlap the pluralityof display items. This enables a video originally watched by the user tonot be covered by the plurality of display items.

The user may easily search for the content or the menu and confirm theclassified category by the method for controlling a depth of a categoryfor the plurality of display items displayed as described above.

Meanwhile, FIG. 16 is a flow chart illustrating a method for moving aplurality of display items, according to an exemplary embodiment.

First, the display apparatus 100 displays the plurality of display itemscorresponding to the plurality of content items in one region of thedisplay (S1600). Further, the display apparatus 100 displays the firstdisplay item located in the first region among the plurality of displayitems using the first display scheme and displays the remaining displayitems other than the first display items located in the first regionamong the plurality of display items using the second display scheme(S1610).

In detail, the first display scheme may be a scheme for displaying athumbnail image corresponding to the first display item and the seconddisplay scheme may be a scheme for displaying the remaining displayitems in a block form having a width narrower than that of the thumbnailimage. In particular, the second display scheme may be a block formhaving a color corresponding to an average value of pixel valuesincluded in the thumbnail images corresponding to each of the seconddisplay items.

The display apparatus 100 determines whether the user interaction formoving a display item is sensed (S1620). Further, when the controlapparatus 200 for controlling the display apparatus 100 includes a touchpad, the user interaction may be moving the touched point on the touchpad from the first point to the second point. Alternatively, when thecontrol apparatus 200 includes 4-way buttons, the user interaction maybe pressing one of the 4-way buttons. Further, when the controlapparatus 200 is a pointing remote controller, the user interaction mayalso be inclining the pointing remote controller in one direction. Whenthe user interaction for moving the display item is sensed (S1620-Y),the display apparatus 100 changes the display scheme of the firstdisplay item to the second display scheme while moving the first displayitem to one side corresponding to the user interaction and changes thedisplay scheme of the second display item moving to the first regionamong the remaining display items to the first display scheme (S1630).

In detail, the display apparatus 100, depending on the sensed userinteraction, may reduce the width of the first display item in the firstdirection and increase the width of the second display item moving tothe first region in the first direction, thereby changing the displayscheme of the second display item to the first display scheme.

Further, when the width of the second display item moving to the firstregion is larger than that of the first display item reduced in thefirst direction depending on the user interaction, the display apparatus100 may perform a control to change the display scheme of the firstdisplay item to the second display scheme and change the display schemeof the second display item to the first display scheme.

Meanwhile, when the user interaction for moving the display item is notsensed (S1620-N), the display apparatus 100 determines whether thepreset time elapses (S1640). Further, when the preset time (for example,5 seconds) elapses (S1640-Y), the display apparatus 100 ends the displayfor the plurality of display items (S1650).

That is, even when the separate user command for ending the display ofthe display items is not input, the plurality of display items maydisappear when the preset time (for example, five seconds) elapses.

Meanwhile, FIG. 17 is a flow chart illustrating a method for controllinga depth of a category corresponding to a plurality of display items,according to an exemplary embodiment.

First, the display apparatus 100 displays the plurality of display itemscorresponding to the plurality of content items in one region of thedisplay (S1700). Further, the display apparatus 100 displays the firstdisplay item located in the first region among the plurality of displayitems using the first display scheme, and displays the remaining displayitems other than the first display items located in the first regionamong the plurality of display items using the second display scheme(S1710).

In detail, the first display scheme may be a scheme for displaying athumbnail image corresponding to the first display item, and the seconddisplay scheme may be a scheme for displaying the remaining displayitems in a block form having a width narrower than that of the thumbnailimage. In particular, the second display scheme may be a block formhaving a color corresponding to an average value of pixel valuesincluded in the thumbnail images corresponding to each of the seconddisplay items.

When the third user interaction for displaying the upper category of thedisplay item is sensed (S1720-Y), the display apparatus 100 combines thedisplay items included in the same category among the plurality ofdisplay items and changes the combined display items to the upperdisplay item (S1730).

When the control apparatus 200 includes touch pad 210, the third userinteraction may be the user command of dragging on the touch pad 210 inone direction. When the control apparatus 200 includes 4-way buttons220, the third user interaction may be the pressing one button of the4-way buttons 220. When the control apparatus 200 is the pointing remotecontroller, the third user interaction may also be inclining thepointing remote controller in one direction.

The upper display item may be a box form having a color corresponding toan average value of pixel values of the display items prior to beingcombined.

Further, the display apparatus 100 may display that the upper displayitem including the vertical line, and subsequently, the vertical linedisappears as the display items included in the same category arecombined with each other and then are changed to the upper display item.

That is, the display apparatus 100 may display a graphical userinterface (GUI) which continuously and naturally combines the pluralityof display items as the upper display item.

Meanwhile, when the third user interaction for displaying the uppercategory of the display item is not sensed (S1720-N), the displayapparatus 100 determines whether the preset time elapses (S1740).Further, when the preset time (for example, 5 seconds) elapses(S1740-Y), the display apparatus 100 ends the display for the pluralityof display items (S1750).

Meanwhile, program code for performing a control method according tovarious exemplary embodiments as described above may be stored in anon-transitory computer readable medium. The non-transitory computerreadable medium is a medium that semi-permanently stores data thereinand is readable by a device. In detail, various applications or programsdescribed above may be stored and provided in the non-transitorycomputer readable medium, such as a compact disk (CD), a digitalversatile disk (DVD), a hard disk, a Blu-ray disk, a universal serialbus (USB), a memory card, a read only memory (ROM), or the like.

According to the display method of the display apparatus as describedabove, it is possible for the user to easily and simply use the userinterface which may freely move between content items or categoriesclassifying the content items.

Although exemplary embodiments have been illustrated and describedabove, the present disclosure is not limited to the above-mentionedspecific exemplary embodiments, but may be variously modified by thoseskilled in the art without departing from the scope and spirit asdisclosed in the accompanying claims. These modifications should also beunderstood to fall within the scope of the present disclosure.

What is claimed is:
 1. A display method of a display apparatus,comprising: displaying a plurality of display items corresponding to aplurality of content items, the plurality of display items comprising afirst display item displayed in a first region and remaining displayitems; displaying the first display item using a first display schemeand displaying the remaining display items using a second displayscheme; and in response to sensing a user interaction for changing afocus, changing the display scheme of the first display item whilemoving the first display item in a direction corresponding to the userinteraction, displaying the first display item using the second displayscheme and changing the display scheme of second display items moving tothe first region to the first display scheme.
 2. The display method asclaimed in claim 1, wherein the first display scheme is a scheme ofdisplaying thumbnail images corresponding to the first display item in ablock form having a first thumbnail width, and the second display schemeis a scheme of displaying thumbnail images corresponding to the seconddisplay items in a block form having a second thumbnail width narrowerthan the first thumbnail width.
 3. The display method as claimed inclaim 1, wherein the second display scheme is a scheme of displayingthumbnail images in a block form having a color corresponding to anaverage value of pixel values included in thumbnail images displayed inthe second display scheme.
 4. The display method as claimed in claim 1,wherein in the changing, a width of the first display item is reduced ina first direction and a width of the second display item moving to thefirst region is increased in the first direction, in a mannercorresponding to the user interaction to change the display scheme ofthe second display item to the first display scheme.
 5. The displaymethod as claimed in claim 4, wherein in the changing, in response tothe width of the second display item moving to the first region beingwider than that of the first display item, the display scheme of thefirst display item is changed to the second display scheme and thedisplay scheme of the second display item moving to the first region ischanged to the first display scheme.
 6. The display method as claimed inclaim 1, further comprising: displaying the first display item using athird display scheme and changing the display scheme of the remainingdisplay items to the first display scheme in response to sensing asecond user interaction for extending the plurality of display items. 7.The display method as claimed in claim 6, wherein the third displayscheme is a scheme of displaying a pre-established video and the firstdisplay scheme is a scheme of displaying thumbnail images correspondingto each of the remaining display items.
 8. The display method as claimedin claim 7, further comprising: extending the pre-established video tobe displayed over the entire display, in response to subsequentlysensing the second user interaction; and changing the video displayed toa video corresponding to an adjacent display item in a directioncorresponding to the user interaction, in response to sensing the userinteraction.
 9. The display method as claimed in claim 8, wherein thepre-established video is one of a plurality of video frames included inthe contents, and in the displaying of the pre-established video overthe entire display, the video corresponding to the contents isdisplayed.
 10. The display method as claimed in claim 7, furthercomprising: in response to sensing the user interaction for changing afocus, changing the display scheme of the first display item to thefirst display scheme when a width of the pre-established video of thefirst display item is reduced in the first direction to be equal to orsmaller than that of the second display item moving to the first region,depending on the user interaction, and changing the display scheme ofthe second display item to the third display scheme when the width ofthe second display item is increased in the first direction to be equalto or larger than that of the first display item.
 11. The display methodas claimed in claim 10, wherein in response to the display scheme of thefirst display item changing to the first display scheme, the firstdisplay item includes a first thumbnail section in which a thumbnailimage corresponding to the first display item and the pre-establishedvideo are displayed while overlapping each other, and in response to thedisplay scheme of the second display item changing to the third displayscheme, the second display item includes a second thumbnail section inwhich a thumbnail image of the second display item and thepre-established video are displayed while overlapping each other. 12.The display method as claimed in claim 1, wherein the first region is aregion corresponding to a center of the plurality of display items. 13.The display method as claimed in claim 1, wherein the user interactionis at least one of a command of moving a touch point on a touch pad froma first point to a second point, a command of manipulating one of 4-waybuttons, and a command of orienting a pointing remote controller. 14.The display method as claimed in claim 1, wherein in the displaying ofthe plurality of display items, each of the display items included inthe same category among the plurality of display items is displayed tobe continuously listed.
 15. The display method as claimed in claim 14,wherein in the displaying of the plurality of display items, in responseto a user command for changing an arrangement order of the plurality ofdisplay items is input, the plurality of display items are rearrangeddepending on a category classification different from a previouslydisplayed category classification.
 16. A display apparatus, comprising:a display configured to display a plurality of display itemscorresponding to a plurality of content items comprising a first displayitem displayed in a first region and remaining display items; a sensorconfigured to sense a user interaction; and a controller configured tocontrol the display to display a first display item using a firstdisplay scheme, display the remaining display items using a seconddisplay scheme, and change the display scheme of the first display itemto the second display scheme while moving the first display item in adirection corresponding to the user interaction, and change the displayscheme of a second display item moving to the first region to the firstdisplay scheme in response to the user interaction.
 17. The displayapparatus as claimed in claim 16, wherein the controller is configuredto control the display to display a thumbnail image corresponding to thefirst display item using the first display scheme in a block form havinga first thumbnail width, and display a block form having a secondthumbnail width narrower than the first thumbnail width.
 18. The displayapparatus as claimed in claim 16, wherein the controller is configuredto control the display to display a block form having a colorcorresponding to an average value of pixels values included in thumbnailimages displayed in the second display scheme.
 19. The display apparatusas claimed in claim 16, wherein the controller is configured to controlthe display to change the display scheme of the second display item tothe first display scheme by reducing a width of the first display itemin a first direction and increasing a width of the second display itemmoving to the first region in the first direction, in a mannercorresponding to the sensed user interaction.
 20. The display apparatusas claimed in claim 19, wherein the controller is configured, inresponse to the width of the second display item moving to the firstregion being wider than that of the first display item, to control thedisplay to change the display scheme of the first display item to thesecond display scheme and change the display scheme of the seconddisplay item moving the first region to the first display scheme. 21.The display apparatus as claimed in claim 16, wherein the controller isconfigured to control the display to display the first display itemusing a third display scheme and change the display scheme of theremaining display items to the first display scheme in response to thesensor sensing a second user interaction for extending the plurality ofdisplay items.
 22. The display apparatus as claimed in claim 21, whereinthe controller is configured to control the display to display apre-established video using the third display scheme and displaythumbnail images corresponding to each of the remaining items using thefirst display scheme.
 23. The display apparatus as claimed in claim 22,wherein the controller is configured to control the display to extendthe pre-established video displayed in the first region and display theextended pre-established video over the entire region of the displaywhen the second user interaction is subsequently sensed by the sensorand change the displayed video to a video corresponding to an adjacentdisplay item in a direction corresponding to the user interaction inresponse to sensing the user interaction by the sensor.
 24. The displayapparatus as claimed in claim 23, wherein the controller is configuredto control the display to display one of the plurality of video framesincluded in the contents as the pre-established video and display videoscorresponding to the contents from the pre-established video over theentire region of the display.
 25. The display apparatus as claimed inclaim 22, wherein the controller is configured to control the display tochange the display scheme of the first display item to the first displayscheme when a width of a pre-established video of the first display itemis reduced in the first direction to be equal to or smaller than that ofthe second display item moving to the first region, depending on theuser interaction and change the display scheme of the second displayitem to the third display scheme when the width of the second displayitem is increased in the first direction to be equal to or larger thanthat of the first display item, in the case in which the sensor sensesthe user interaction for moving the display item.
 26. The displayapparatus as claimed in claim 25, wherein the controller is configuredto control the first display item to include a first thumbnail sectionin which a thumbnail image corresponding to the first display item andthe pre-established video are displayed while overlapping each otherwhen the display scheme of the first display item is changed to thefirst display scheme and the second display scheme of the second displayitem to include a second thumbnail section in which a thumbnail image ofthe second display item and the pre-established video are displayedwhile overlapping each other when the display scheme of the seconddisplay item is changed to the third display scheme.
 27. The displayapparatus as claimed in claim 16, wherein the first region is a regioncorresponding to a center of the plurality of display items.
 28. Thedisplay apparatus as claimed in claim 16, wherein the user interactionis at least one of a command of moving a touch point on a touch pad froma first point to a second point, a command of manipulating one of 4-waybuttons, and a command of orienting a pointing remote controller. 29.The display apparatus as claimed in claim 16, wherein the controller isconfigured to control each of the display items included in the samecategory among the plurality of display items to be continuously listed.30. The display apparatus as claimed in claim 29, wherein the controlleris configured to control the plurality of display items to be rearrangeddepending on a category classification different from a previouslydisplayed category classification, in response to a user command forchanging an arrangement order of the plurality of display items isinput.
 31. A display method of a display apparatus, comprising:displaying a plurality of display items corresponding to a plurality ofcontent items, the plurality of content items comprising a first displayitem displayed in a first region and remaining display items; displayingthe first display item using a first display scheme and displaying theremaining display items using a second display scheme; and combining aplurality of display items included in a same category among theplurality of display items into an upper display item, in response tosensing a third user interaction for displaying an upper category of thedisplay item.
 32. The display method as claimed in claim 31, wherein inthe changing, in response to sensing the third user interaction, thedisplay schemes of the first display item and at least one display itemincluded in the same category as the first display item are each changedto the second display scheme, and display items other than the firstdisplay item and at least one display item included in the same categoryas the first display item are changed to an upper display item as thedisplay items included in the same category are combined.
 33. Thedisplay method as claimed in claim 32, wherein in response tosubsequently sensing the third user interaction again, the first displayitem and at least one display item included in the same category as thefirst display item are changed to the upper display item and combinedwith each other.
 34. The display method as claimed in claim 31, whereinthe upper display item is displayed as a color corresponding to anaverage value of pixel values of a thumbnail image corresponding to atleast one combined display item and is a display item in a box formhaving a width proportional to the number of combined display items. 35.The display method as claimed in claim 31, wherein the first displayscheme is a scheme of displaying thumbnail images corresponding to thefirst display items and the second display scheme is a scheme ofdisplaying the remaining display items in a block form having a widthnarrower than that of the thumbnail image.
 36. The display method asclaimed in claim 31, further comprising: in response to sensing a fourthuser interaction for displaying a lower category of the upper displayitem, segmenting the upper display item to change the display scheme ofthe first display item located in the first region to the first displayscheme and changing the display scheme of the remaining display items tothe second display scheme to display the changed display items.
 37. Adisplay apparatus, comprising: a display configured to display aplurality of display items corresponding to a plurality of content itemscomprising a first display item displayed in a first region andremaining display items; a sensor configured to sense user interaction;and a controller configured to control the display to display a firstdisplay item using a first display scheme, display the remaining displayitems using a second display scheme, and combine display items includedin a same category and change the combined display items to an upperdisplay item in response to sensing the third user interaction fordisplaying the upper category of the display item.
 38. The displayapparatus as claimed in claim 37, wherein the controller is configuredto change the display schemes of the first display item and at least onedisplay item included in the same category as the first display item,respectively, to the second display scheme, in response to sensing thethird user interaction, and combine display items other than the firstdisplay item and at least one display item included in the same categoryas the first display item and change the combined items to the upperdisplay item.
 39. The display apparatus as claimed in claim 38, whereinthe controller is configured to combine and display as the upper displayitem, in response to subsequently sensing the third user interactionagain, the first display item and at least one display item included inthe same category.
 40. The display apparatus as claimed in claim 37,wherein the controller is configured to control the upper display itemto be displayed as a color corresponding to an average value of pixelvalues of a thumbnail image corresponding to at least one combineddisplay item and is a display item in a box form having a widthproportional to the number of combined display items.
 41. The displayapparatus as claimed in claim 37, wherein the first display scheme is ascheme of displaying thumbnail images corresponding to the first displayitems and the second display scheme is a scheme of displaying theremaining display item in a block form having a width narrower than thatof the thumbnail image.
 42. The display apparatus as claimed in claim37, wherein the controller is configured to segment the upper displayitem in response to sensing a fourth user interaction for displaying alower category of the upper display item, to control the display tochange the display scheme of the first display item to the first displayscheme and change the display scheme of the remaining display items tothe second display scheme to display the changed display items.
 43. Adisplay apparatus comprising: a display configured to display content;an interface configured to receive a user input; a controller configuredto control the display to display a first icon and a second icon,wherein one of the first icon and the second icon is a focused icondisplayed in a focused icon format, and wherein the focused icon isinitially the first icon and, in response to the user input, the secondicon is subsequently focused and displayed in the focused icon format.44. The display apparatus of claim 43, wherein the focused icon formatincludes a focused icon size and the one of the first icon and thesecond icon that is not the focused icon is displayed in a backgroundicon format that includes a background icon size and the focused iconsize is larger than the background icon size.
 45. The display apparatusof claim 44, wherein in response to the user input, as the first icontransitions from the focused icon format to the background icon format,a size of the first icon is gradually reduced from the focused icon sizeto the background icon size, and as the second icon transitions from thebackground icon format to the focused icon format, a size of the secondicon is gradually increased from the background icon size to the focusedicon size.
 46. The display apparatus of claim 43, wherein the first iconrepresents a first content category comprising a plurality of firstcontent items and the second icon represents a second content categorycomprising a plurality of second content items.
 47. The displayapparatus of claim 46, wherein in response to the user input selectingthe first icon, the first icon is replaced with a first plurality ofcontent items representing the plurality of first content items and inresponse to the user input selecting the second icon, the second icon isreplaced with a second plurality of content items representing theplurality of second content items.